studies plans and specifications, and prepares templates and scale plans for fabrication and cutting of hull sections
marks reference points and lines on dry docks and slipways
checks position and functioning of slipway apparatus
assembles shells of boats and erecting hull sections of ship
erects and prepares launching platforms, conducting pre-launch tests and supervising launching procedures
installs masts, frames, decking, fittings, machines, shafts and safety equipment
builds and installs structures such as cabins, machine mountings, propeller supports and rudders
determines repair requirements and procedures
may make hull moulds and fabricate and repair vessels using materials such as aluminium, wood, glass, reinforced plastics, carbon fibre, kevlar, fibreglass and concrete.